Astronomy Specialist



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The ZWO ASI 662MC is a professional colour planetary camera containing the Sony STARVIS 2 IMX662 CMOS backlit colour sensor which has a diagonal of 1/2.8" and a resolution of 2.07 MP with 2.9µm pixels. The 662MC can be considered a successor to the ASI 462MC, with zero amp glow, lower dark current noise and three times the full well capacity.



The sensor has a maximum QE up to 91%. This high sensitivity across the visible and near IR light spectrum and very low readout noise make it ideal for high resolution solar and planetary imaging. The large full well depth of 37.8ke- is three times as much as the ASI462MC, making it easier to capture both solar chromosphere and prominences together in a single frame.



The USB 3.0 Port provides 5Gbps bandwidth and lets the camera run at 107.6fps (12bit, normal mode) at full resolution (2.07 Megapixels). Frame rate can be limited by the power of the computer and the writing speed of your hard disk. For higher performance it is suggested to use Solid State Drives. 

The ASI662MC has a HCG mode which effectively reduces readout noise at high gain settings while preserving the same wide dynamic range that you would get at low gain. From 150 gain and higher, HCG mode will automatically activate, giving a read noise as low as 0.8e- with a dynamic range close to 12 stops.


The ASI662MC has built-in anti-amp glow circuitry which is implemented directly at the hardware level.


1/2.8″ CMOS Sony-IMX662AAQR-C
2.07 Megapixels, 1920 x 1080
Pixel size
2.9 µm
Sensor size
5.568 x 3.132 mm, 6.45 mm diagonal
Bayer pattern R Gr Gb B
Quantum efficiency
Exposure range 32 µs - 2000 s
Read noise 0.8 e- to 6.9 e-
Full well capacity 37,800 e-
Bit rate 12 bit
Speed 107.6 fps at full resolution
Shutter type Rolling shutter
ROI Supported
Compatibility Mac, Windows, Linux
Protecting window AR coated
Ports USB 3.0 Type-B, ST4
Back focus 12.5 mm
Connections 2" / 1.25" / M42 x 0.75
Dimensions Ø 62 mm; ↨ 37.1 mm
Weight 126 g


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